There are some great machines out there, but for hunting and rough country work, there are four things that are critical to have on your machine. It must be 4 wheel drive. It must also have a low and high range transmission. It must also have locking axles. You will also want a winch. That being said, there are a lot of things that make it nicer, easier to work with or more comfortable, at a price, but if you are looking for something pretty basic that will do the job at a price you can afford, make sure that your machine has those four things and that they work.
I know that there are several good machines out there that work well. I have had experience with Honda, Yamaha and CanAm, and they are all good. However, I do have a favorite, and that is the Yamaha Grizzly. I have been in places where the trail was very rough and steep, and I wondered how I was going to fare, but my Grizzly is solid and has the power to make it work, and I have never had to walk out. None of the grizzlies under 450CC come with the Low Range or Locking Axles, so if you want a grizzly, start looking at 450CC and up. Mine is a 450, and though it is not as powerful as the larger ones, it is very maneuvrable and has sufficient power for what I need.
Good luck with your search! I hope you find a good, solid, dependable machine!!